CN100583374C - Portable electron microscope using micro-column - Google Patents
Portable electron microscope using micro-column Download PDFInfo
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- CN100583374C CN100583374C CN200580029367A CN200580029367A CN100583374C CN 100583374 C CN100583374 C CN 100583374C CN 200580029367 A CN200580029367 A CN 200580029367A CN 200580029367 A CN200580029367 A CN 200580029367A CN 100583374 C CN100583374 C CN 100583374C
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- chamber
- electron microscope
- portable electron
- microtrabeculae
- vacuum
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/28—Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2251—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
- H01J37/147—Arrangements for directing or deflecting the discharge along a desired path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
- H01J37/185—Means for transferring objects between different enclosures of different pressure or atmosphere
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/02—Details
- H01J2237/024—Moving components not otherwise provided for
- H01J2237/0245—Moving whole optical system relatively to object
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/04—Means for controlling the discharge
- H01J2237/049—Focusing means
- H01J2237/0492—Lens systems
- H01J2237/04924—Lens systems electrostatic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/10—Lenses
- H01J2237/12—Lenses electrostatic
- H01J2237/1205—Microlenses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/15—Means for deflecting or directing discharge
- H01J2237/1502—Mechanical adjustments
- H01J2237/1503—Mechanical scanning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/18—Vacuum control means
- H01J2237/182—Obtaining or maintaining desired pressure
- H01J2237/1825—Evacuating means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/18—Vacuum control means
- H01J2237/188—Differential pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
- H01J2237/204—Means for introducing and/or outputting objects
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Provided is a portable electron microscope using a microcolumn. The portable electron microscope includes a microcolumn, a low vacuum pump, a high vacuum pump, an ultra-high vacuum ion pump, a first chamber for receiving and fixing the microcolumn and a sample to be measured and forming a vacuum by means of the pumps, a controller, and a case for receiving the pumps, the chamber and the controller.
Description
Technical field
The present invention relates to portable electron microscope, relate more specifically to a kind ofly adopt microtrabeculae and carry easily and make things convenient for the portable electron microscope that uses.
Background technology
Microtrabeculae is introduced into the eighties in 20th century at first, as the electron beam microcolum based on the electronic emitter and the electro optical element of the micro-structural of working under the basic principle of scanning tunnel microscope (STM).By critically assembling precision element so that optical numerical value minimizes, electron beam microcolum has formed improved post.
Microtrabeculae generally comprises electronic emitter, source lens, einzel lens (Einzel lens) and deflector.About microtrabeculae, as example, a kind of structure of single microtrabeculae is disclosed among the korean patent application No.2003-66003.Relevant paper comprises " An electron beam microcolumn with improvedresolution; beam current; and stability " by E.Kratschmeretal.6, J.Vac.Sci.Technol.B13 (6), pp.2498-2503,1995 and " Experimentalevaluation of a 20 * 20mm footprint microcolumn " J.Vac.Sci.Technol.B14 (6), pp.3792-3796,1996.Relevant patent comprises United States Patent (USP) the 6th, 297, No. 584, the 6th, 281, and No. 508 and the 6th, 195, No. 214.Multi-microcolumn (multi-microcolumn) can be made up of single-column module (SCM), wherein be arranged with a plurality of single microtrabeculaes in series or in parallel, perhaps multi-microcolumn can be made up of two or more standardization monolithic pillar modules (MCM) (that is, adopting 2 * 1 or 2 * 2 as one group multicolumn).In addition, also have the multi-post structures of being made up of wafer scale pillar module (WCM), wherein a wafer is served as the lens element of post.At paper " Electron beam microcolumns for lithography and relatedapplications " by T.H.P.Chang et al.8, J.Vac.Sci.Technol.B14, pp.3774-3781 discloses this basic conception in 1996.Another pattern is a kind of mixing multi-mode, and one of them or more a plurality of post are arranged with SCM and MCM or WCM, and some lens elements of this post can adopt SCM, MCM or WCM.The basic experiment result of this pattern is disclosed in following paper: " Multi-beam microcolumns based on arrayed SCM andWCM " by Ho-Seob KIM et al.7 persons, Journal of the Korean PhysicalSociety, Vol.45, No.5, pp.1214-1217,2004, Microelectronic Engineering byHo-Seob KIM et al.6, pp.78-79, pp, 55-61,2005 and " Arrayed microcolumnoperaton with a wafer-scale Einzel Lens ".
The microscopical size of conventional electrical is very large.Therefore, when observing by this electron microscope, need be with sample transport to the place that has electron microscope such as research institute etc.This all is being inconvenient aspect time and the space.
Summary of the invention
The purpose of this invention is to provide a kind of portable or movably use the electron microscope of microtrabeculae.
Another object of the present invention provides a kind of can moving and is not subjected to time-space restrictedly to observe the microscope of sample.
Portable electron microscope according to the present invention comprises:
Microtrabeculae;
Roughing pump;
High-vacuum pump;
Ultrahigh vacuum pump;
First chamber, it is used to hold and fixes described microtrabeculae and sample to be tested, and forms vacuum by above-mentioned a plurality of pumps;
Controller; With
Housing, it is used to hold above-mentioned a plurality of pump, described chamber and described controller.
Generally speaking, electron microscope is suitable under vacuum state the illumination of sample electron beam, thereby the electron beam of checking reflection is then observed sample.Therefore, microtrabeculae comprises electronic emitter, source lens, deflector and condenser lens, and microtrabeculae divergent bundle under vacuum state.
Portable electron microscope of the present invention produces ultra high vacuum sample and microtrabeculae are placed under the vacuum state ionic pump or getter pump that this electron microscope comprises mechanical pump or rotary pump, is used to produce the turbine pump 40 of high vacuum and is used to produce ultra high vacuum.The scope of low vacuum is from atmospheric pressure to 10
-3Holder.The scope of high vacuum is about 10
-3To 10
-7Holder.And the scope of ultra high vacuum is about 10
-7To 10
-11Holder.The chamber of using among the present invention is preferably the chamber of about 2.75 inches cubic type.
Described microtrabeculae is installed in the described chamber, and comprises porose microelectronics lens are set, the diameter in this hole be several microns to the hundreds of micron, form by semiconductor or MEMS (microelectromechanical systems) technology Precision Machining.In addition, the described microtrabeculae total length of assigning to the last electrode of end (final) electron lens from the electron emission part of electronic emitter is 10 millimeters or shorter.But if necessary, this total length can be longer than this value.Described microtrabeculae can be different shape, and for example about 22 millimeters cylinder, the size of about 20 mm lengths of diameter is similar to this cylindrical hexahedron or the like.But the overall dimensions of described microtrabeculae can change according to the size of the electronic emitter that uses in this microtrabeculae, lens and deflector.Therefore, can use less microtrabeculae.
Use the portable electron microscope of this microtrabeculae can be manufactured to 400 millimeters * 500 millimeters * 400 millimeters size.This microtrabeculae should use in vacuum chamber.For this reason, microtrabeculae generally is installed in about 2.75 inches cubic chamber.As vacuum chamber, can use adapter flange such as 6 latus rectums (waycross) or 4 latus rectums.Can determine the size or the shape in chamber according to sample to be tested.Maybe need to use platform if sample to be tested is very big, then this chamber is preferably large scale.If only measure small sample, then the chamber can be small size.In this case, the platform that sample can move thereon diminishes, and therefore the stroke of this platform shortens.Therefore, can determine the size of portable electron microscope in addition according to the size of the size in the chamber that microtrabeculae is installed in it and pump.Can expect that very naturally the volume that can consider pump etc. produces the bigger slightly portable electron microscope of size.
Utilization can not be subjected to time-space restrictedly simply and easily to observe sample in the place of expectation according to portable electron microscope of the present invention.
Description of drawings
Fig. 1 is the vertical view that the embodiment of portable electron microscope of the present invention is shown.
Fig. 2 is the cutaway view that illustrates according to the layout in microtrabeculae of the present invention and chamber.
Fig. 3 is the vertical view that another embodiment of portable electron microscope of the present invention is shown.
Fig. 4 is the vertical view that the another embodiment of portable electron microscope of the present invention is shown.
Fig. 5 is the end view that the outside of portable electron microscope of the present invention is shown.
Fig. 6 is the schematic perspective view that the example that moves (for example tilting) of the microtrabeculae that uses among the present invention is shown.
Embodiment
Describe portable electron microscope of the present invention below with reference to accompanying drawings in detail.
Fig. 1 is the vertical view that schematically shows according to the basic structure of portable electron microscope of the present invention.This portable electron microscope is contained in the housing 99, be provided with in the housing 99 controller 20, chamber 10, such as on the ultrahigh vacuum pump 30 of ionic pump and/or getter pump, the described chamber such as the high-vacuum pump 40 of turbine pump and the roughing pump 50 such as mechanical pump on high-vacuum pump 40 right sides.Computer (not shown) such as notebook computer can be connected to controller 20, so that controller 20 is controlled.Certainly, the layout of Fig. 1 needs not to be fixing, but can change according to housing and other size of component.
When remaining on constant vacuum state, the chamber is by valve and airtight.But the valve that is connected to ionic pump continues to open when keeping vacuum state.In order to reduce the weight of volume and equipment, two other valve is not set the valve between chamber and turbine pump does not have much relations.
Fig. 2 is the cutaway view that illustrates according to the layout in microtrabeculae 1 of the present invention and chamber 10.Generally speaking, microtrabeculae 1 is installed in the feedthrough 2, and is fixed on the port of vacuum chamber 10.The inside of vacuum chamber 10 is equipped with the maybe fixing platform of sample to be tested 9 of carrier 8.According to the same or analogous mode of measuring with general electron microscope of principle, by measuring the sample of being fixed 9 from microtrabeculae 1 electrons emitted bundle B.At this moment, microtrabeculae should keep ultra high vacuum, is preferably 10
-9Holder or higher vacuum degree.But the inside that wherein is placed with the chamber of sample does not need to keep ultra high vacuum, can keep and the corresponding vacuum degree of high vacuum by the high-vacuum pump that connects via vacuum line 31.Therefore, chamber 10 can keep the vacuum degree different with microtrabeculae 1.In other words, can make the vacuum degree difference., except the aperture of lens, microtrabeculae is all sealed, and ultrahigh vacuum pump utilizes T shape or cross flange 3 or independent chamber to be connected to microtrabeculae 1 and feedthrough 2 for this reason, rather than be connected to chamber 10.If do not use dissimilarly, then can not use flange 3.
Fig. 3 is the vertical view that another embodiment of portable electron microscope of the present invention is shown.In this embodiment, compare, also be provided with the chamber 70 of a sample loading individually with the embodiment of Fig. 1.Measuring chamber 10 can be connected by loading passage 71 with load chamber 70.Be provided with door 72 in passage 71, door 72 is opened when sample loading and is closed when observing sample.Plenty of time need be spent owing to make the inside in chamber 10 be in ultra-high vacuum state, so the inside that makes chamber 10 in advance is near ultra-high vacuum state, and sample only is loaded in the independent chamber 70, utilize linear carrier (linear carrier) by load passage 71 with sample transport to measuring in the chamber 10.In this embodiment, make chamber 10 be in ultra-high vacuum state by valve 60 and 73 in advance.Sample is inserted in the chamber 70, utilize mechanical pump 50 and turbine pump 40 to make chamber 70 be in high vacuum state.Then, thus via loading passage 71 sample transport is measured by microtrabeculae 1 to measuring in the chamber 10.Be used for the vacuum of accelerating cavity owing to directly connect the vacuum tube or the circuit 31 in turbine pump 40 and chamber 10, also have little or nothing to do with so cancel it.But when in the chamber platform being arranged, platform part and microtrabeculae part are separated by the valve (not shown), when inserting or take out sample, utilize vacuum line 31 to keep the vacuum of platform part.
Fig. 4 is illustrated in the vertical view that the embodiment of thermoelectric element (thermoelement) or heater 81 and 82 is installed on the portable electron microscope of Fig. 3.This embodiment is in order to reach ultra high vacuum easily.For this reason, baking chamber 10 and 70 under about 100 ℃ temperature.Recently say mutually, be subjected to the influence of heat easily, so isolate by thermoelectric element 81 as the controller 20 of precision electronic element.Thus, chamber 10 is suitable for being toasted, and controller 20 is suitable for working under low-temperature condition.Therefore, controller 20 and mechanical pump 50 be arranged on outside with by thermoelectric element 81 and 82 or heating tape (tape) keeps low-temperature condition, and that chamber 10 and chamber 70, turbine pump 30 and ionic pump 40 are arranged on is inner with maintenance high temperature.As shown in the embodiment of Fig. 3, can realize whole portable electron microscopes according to above-mentioned principle.
Fig. 5 is the end view that illustrates according to the outside of the housing 99 of portable electron microscope of the present invention.The outer setting of housing 99 has power supply terminal 82, can be connected to the control terminal 83 of notebook computer etc. and be used to discharge and suck the air connector 84 of air or gas.When forming vacuum with air-out, chamber and/or pump to use air connector 84 when being connected to.Portable electron microscope of the present invention has following advantage, can keep vacuum by the battery electric power of automobile when transporting, because microtrabeculae has small size and the chamber also has small size.
Fig. 6 schematically shows that microtrabeculae 1 among each embodiment of the portable electron microscope that can make the invention described above tilts and/or the stereogram of the structure of vertical moving.
In said structure of the present invention, can use microtrabeculae according to single or multiple types.Can use multi-microcolumn by making up all kinds (as chip type etc.) that a plurality of single microtrabeculaes or semiconductor technology produce.
Use can be used for portable checkout facility or imprint lithography (lithography) according to the portable electron microscope of microtrabeculae of the present invention.
Claims (7)
1, a kind of portable electron microscope, this portable electron microscope comprises:
Microtrabeculae;
Roughing pump;
High-vacuum pump;
Ultrahigh vacuum pump;
First chamber, it is used to hold and fixes described microtrabeculae and sample to be tested, and forms vacuum by above-mentioned a plurality of pumps;
Controller; With
Housing, it is used to hold above-mentioned a plurality of pump, described chamber and described controller,
The size of wherein said portable electron microscope is less than 400mm * 500mm * 400mm, thereby can move.
2, portable electron microscope according to claim 1, wherein said microtrabeculae moves with respect to described sample to be tested, and carry out and vertical moving in a kind of.
3, portable electron microscope according to claim 1 and 2, this portable electron microscope also comprises: the carrier of placing described sample thereon; Be used for described carrier is transported to the conveyer in first chamber; With second chamber that is used to hold described carrier, this second chamber links to each other with described first chamber by the switch door under vacuum state, so that described conveyer moves to described first chamber, wherein said sample is placed on the described carrier, and is transported to described first chamber by described conveyer.
4, portable electron microscope according to claim 1 and 2, wherein said chamber and described controller are isolated by one of thermoelectric element and heating tape, and are contained in the described housing.
5, portable electron microscope according to claim 3, wherein said first chamber and described controller are isolated by any one in thermoelectric element and the heating tape, and are contained in the described housing.
6, portable electron microscope according to claim 1 and 2, wherein the vacuum degree difference makes described microtrabeculae keep ultra high vacuum and described chamber maintenance low vacuum or high vacuum.
7, portable electron microscope according to claim 1 and 2, wherein said microtrabeculae are multi-microcolumn.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20040069731 | 2004-09-01 | ||
| KR1020040069731 | 2004-09-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101010775A CN101010775A (en) | 2007-08-01 |
| CN100583374C true CN100583374C (en) | 2010-01-20 |
Family
ID=36000309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580029367A Expired - Fee Related CN100583374C (en) | 2004-09-01 | 2005-09-01 | Portable electron microscope using micro-column |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8071944B2 (en) |
| EP (1) | EP1794773A4 (en) |
| JP (1) | JP2008511957A (en) |
| KR (2) | KR100896295B1 (en) |
| CN (1) | CN100583374C (en) |
| WO (1) | WO2006025705A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101897460B1 (en) * | 2016-11-16 | 2018-09-12 | 한국표준과학연구원 | Replaceable electron gun for electron microscope and electron microscope comprising the same |
| US20190180969A1 (en) * | 2017-12-11 | 2019-06-13 | Edwards Vacuum Llc | Pressure gradient pump |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58918Y2 (en) * | 1977-05-31 | 1983-01-08 | 株式会社島津製作所 | Charged particle beam analyzer |
| US4663559A (en) * | 1982-09-17 | 1987-05-05 | Christensen Alton O | Field emission device |
| JPH077651B2 (en) * | 1985-08-01 | 1995-01-30 | 株式会社日立製作所 | Vacuum exhaust system for electron microscope |
| US5248636A (en) * | 1987-07-16 | 1993-09-28 | Texas Instruments Incorporated | Processing method using both a remotely generated plasma and an in-situ plasma with UV irradiation |
| US5412180A (en) * | 1993-12-02 | 1995-05-02 | The Regents Of The University Of California | Ultra high vacuum heating and rotating specimen stage |
| SG74599A1 (en) * | 1997-09-27 | 2000-08-22 | Inst Of Material Res & Enginee | Portable high resolution scanning electron microscope column using permanent magnet electron lenses |
| US6023060A (en) * | 1998-03-03 | 2000-02-08 | Etec Systems, Inc. | T-shaped electron-beam microcolumn as a general purpose scanning electron microscope |
| US6744268B2 (en) * | 1998-08-27 | 2004-06-01 | The Micromanipulator Company, Inc. | High resolution analytical probe station |
| US6171165B1 (en) | 1998-11-19 | 2001-01-09 | Etec Systems, Inc. | Precision alignment of microcolumn tip to a micron-size extractor aperture |
| US6281508B1 (en) | 1999-02-08 | 2001-08-28 | Etec Systems, Inc. | Precision alignment and assembly of microlenses and microcolumns |
| US6369385B1 (en) | 1999-05-05 | 2002-04-09 | Applied Materials, Inc. | Integrated microcolumn and scanning probe microscope arrays |
| US6195214B1 (en) | 1999-07-30 | 2001-02-27 | Etec Systems, Inc. | Microcolumn assembly using laser spot welding |
| GB0002367D0 (en) * | 2000-02-03 | 2000-03-22 | Limited | Spectrometer |
| JP2001332204A (en) * | 2000-05-22 | 2001-11-30 | Hitachi Ltd | Pumping unit for electron microscope |
| US6451120B1 (en) * | 2000-09-21 | 2002-09-17 | Adc Telecommunications, Inc. | Apparatus and method for batch processing semiconductor substrates in making semiconductor lasers |
| US6936826B2 (en) * | 2001-11-07 | 2005-08-30 | Soluris, Inc. | Vibration-isolating coupling including an elastomer diaphragm for scanning electron microscope and the like |
| KR20030066003A (en) | 2002-02-04 | 2003-08-09 | 주식회사 케이티 | Ring protection switching method for ring network |
| JP2004031207A (en) * | 2002-06-27 | 2004-01-29 | Canon Inc | Electron beam irradiation equipment and scanning electron microscope apparatus |
| CN1518049A (en) * | 2003-01-28 | 2004-08-04 | ������������ʽ���� | Electronic microscope |
| JP2004253374A (en) * | 2003-01-28 | 2004-09-09 | Hitachi Ltd | Electron microscope |
| US6992306B2 (en) * | 2003-04-15 | 2006-01-31 | Canon Kabushiki Kaisha | Temperature adjustment apparatus, exposure apparatus having the same, and device fabricating method |
| US6762415B1 (en) * | 2003-04-18 | 2004-07-13 | Imago Scientific Instruments Corporation | Vacuum chamber with recessed viewing tube and imaging device situated therein |
| US6897443B2 (en) * | 2003-06-02 | 2005-05-24 | Harald Gross | Portable scanning electron microscope |
| KR100533444B1 (en) * | 2003-07-25 | 2005-12-05 | 전자빔기술센터 주식회사 | A method for manufacturing a lens assembly of microcolumn and a lens assembly of microcolumn manufactured by the same |
-
2005
- 2005-09-01 KR KR1020077004925A patent/KR100896295B1/en active IP Right Grant
- 2005-09-01 WO PCT/KR2005/002903 patent/WO2006025705A1/en active Application Filing
- 2005-09-01 KR KR1020087025109A patent/KR20080106974A/en not_active Application Discontinuation
- 2005-09-01 CN CN200580029367A patent/CN100583374C/en not_active Expired - Fee Related
- 2005-09-01 US US11/792,156 patent/US8071944B2/en not_active Expired - Fee Related
- 2005-09-01 JP JP2007529710A patent/JP2008511957A/en active Pending
- 2005-09-01 EP EP05781157A patent/EP1794773A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN101010775A (en) | 2007-08-01 |
| US20080315096A1 (en) | 2008-12-25 |
| EP1794773A4 (en) | 2009-10-28 |
| KR20080106974A (en) | 2008-12-09 |
| JP2008511957A (en) | 2008-04-17 |
| WO2006025705A1 (en) | 2006-03-09 |
| KR100896295B1 (en) | 2009-05-07 |
| KR20070050457A (en) | 2007-05-15 |
| EP1794773A1 (en) | 2007-06-13 |
| US8071944B2 (en) | 2011-12-06 |
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